\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Appendix Table: IV estimates for mother time/goods relative demand using different predicted wage measures as instruments (ALL, 1-2 kids ages 0-12, P(work) $\geq$ .75, 2002 and 2007)}
\begin{tabular}{l*{4}{c}}
\hline\hline
               &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
               &\multicolumn{1}{c}{Uses All Variation}&\multicolumn{1}{c}{Excludes Avg. State Diff.}&\multicolumn{1}{c}{Excludes Avg. Occ Diff.}&\multicolumn{1}{c}{Excludes Avg. State and Occ Diff.}\\
               &      b/se         &      b/se         &      b/se         &      b/se         \\
\hline
$\ln(\tilde{W}\_{m,i})$&     0.553\sym{**} &     0.359         &     0.799         &    -0.450         \\
               &   (0.196)         &   (0.226)         &   (0.457)         &   (1.243)         \\
Married        &    -0.071         &    -0.081         &    -0.058         &    -0.123         \\
               &   (0.096)         &   (0.097)         &   (0.098)         &   (0.127)         \\
Child's age    &    -0.140\sym{***}&    -0.143\sym{***}&    -0.137\sym{***}&    -0.154\sym{***}\\
               &   (0.022)         &   (0.023)         &   (0.023)         &   (0.031)         \\
Mother some    &     0.026         &     0.078         &    -0.040         &     0.296         \\
coll.          &   (0.113)         &   (0.118)         &   (0.158)         &   (0.353)         \\
Mother coll+   &    -0.119         &    -0.007         &    -0.262         &     0.463         \\
               &   (0.155)         &   (0.168)         &   (0.285)         &   (0.731)         \\
Mother's age   &    -0.007         &    -0.005         &    -0.010         &     0.004         \\
               &   (0.008)         &   (0.008)         &   (0.009)         &   (0.016)         \\
Mother white   &    -0.233\sym{*}  &    -0.218\sym{*}  &    -0.251\sym{**} &    -0.158         \\
               &   (0.091)         &   (0.092)         &   (0.096)         &   (0.138)         \\
Num children   &     0.168         &     0.174         &     0.159         &     0.201         \\
age 0-5        &   (0.126)         &   (0.127)         &   (0.127)         &   (0.150)         \\
Num of children&     0.082         &     0.068         &     0.101         &     0.008         \\
               &   (0.063)         &   (0.064)         &   (0.070)         &   (0.116)         \\
\_cons         &     2.398\sym{***}&     2.800\sym{***}&     1.887         &     4.479         \\
               &   (0.520)         &   (0.572)         &   (1.002)         &   (2.606)         \\
\hline
N              &       720         &       720         &       720         &       720         \\
\hline\hline
\end{tabular}
\end{table}
